What’s wrong with vertigo when I turn my head? The most likely causes of vertigo when you turn your head are as follows: 1. Benign paroxysmal positional vertigo, also called otolithosis, is caused by the dislodgement of calcium carbonate particles in the vestibular semicircular canal, which stimulates the vestibular nerve and causes vertigo in patients. The first condition is that the otolith is dislodged, and the second condition is that the patient turns his head, so while turning his head, it will stimulate the calcium carbonate particles and cause the movement of the calcium carbonate particles, so the vertigo will appear. 2.